Malicious File Detection Using Yara
critical Nessus Plugin ID 91990
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New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Synopsis
Nessus detected malicious files on the remote host.Description
Nessus detected one or more files on the remote Windows host that match a Yara rule.Note that Nessus has only scanned files with the following extensions:
.application, .asp, .aspx, .bat, .chm, .class, .cmd, .com, .cp, .csh, .csv, .dl, .doc, .docx, .drv, .exe, .gadget, .hta, .inf, .ins, .inx, .isu, .jar, .job, .jpeg, .jpg, .js, .jse, .jse, .jsp, .lnk, .msc, .msi, .msp, .mst, .paf, .pdf, .php, .pif, .ppt, .pptx, .ps1, .ps1xm, .ps2, .ps2xm, .psc1, .psc2, .reg, .rgs, .scf, .scr, .sct, .shb, .shs, .swf, .sys, .txt, .u3p, .vb, .vbe, .vbs, .vbscript, .ws, .wsf, .xls
See Also
Plugin Details
Severity: Critical
ID: 91990
File Name: wmi_malware_yara_filesystem.nbin
Version: 1.128
Type: local
Agent: windows
Family: Windows
Published: 7/11/2016
Updated: 9/20/2021
Dependencies: wmi_malware_scan.nbin
Risk Information
CVSS Score Source: manual
CVSS Score Rationale: The detection is suspected as being malware.
CVSS v2
Risk Factor: Critical
Base Score: 10
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: Critical
Base Score: 10
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability Information
Required KB Items: malscan/enabled